///*
// *  BIP32 library, a Java implementation of BIP32
// *  Copyright (C) 2017 Alan Evans, NovaCrypto
// *
// *  This program is free software: you can redistribute it and/or modify
// *  it under the terms of the GNU General Public License as published by
// *  the Free Software Foundation, either version 3 of the License, or
// *  (at your option) any later version.
// *
// *  This program is distributed in the hope that it will be useful,
// *  but WITHOUT ANY WARRANTY; without even the implied warranty of
// *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// *  GNU General Public License for more details.
// *
// *  You should have received a copy of the GNU General Public License
// *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
// *
// *  Original source: https://github.com/NovaCrypto/BIP32
// *  You can contact the authors via github issues.
// */
//
//package com.github.ontio.crypto.bip32;
//
//import io.github.novacrypto.bip32.*;
//
//public interface CKDpriv {
//
//    /**
//     * Calculates the private key of the child at index.
//     *
//     * @param index The child index to calculate.
//     * @return The private key of the child.
//     */
//    ExtendedPrivateKey cKDpriv(final int index);
//}
